Improvement in boring-machines



0'. F. TEED.

lmproh/ement in Boring-Machines.

No. 132,187. i Patemd om. 15,1872.

www1-:Saas 4 INvENTOFe UNITED STATES PATENT GEEIoE.

' OLIVER F. iTEED, OF GUILFORD, NEW YORK, ASSIGNOR OF ONE-HALF HIS RIGHTTO JESSE S. TEED AND CHARLES J. TEED, OF SAME PLACE.

IMPROVEMENT IN BORING-MACHINES.

Specification forming part of Letters Patent No. 132,187, dated October15, 1872.

To all whom it may concern:

Be it known that I, OLIVER F. TEED, of Guilford, in the county ofOhenango and State of New York, have invented an Improved Machine forDoweling; and do hereby declare that the following description, taken inconnection with the accompanying plate of drawing, hereinafter referredto, forms a full speciiication of the same, wherein I have set forth thenature of my saidinvention, by which the same may be distinguished fromothers of a similar class, together with such parts as I claim anddesire to secure by letters patent.

My invention relates to that class of woodworking machines whichV aremade use of for boring holes for dowels; and the nature thereof consistsin certain modifications and improvements in the construction of thesame,

hereinafter described and shown.

In the accompanying drawing, which illustrates my invention and forms apart of the specication thereof, in which corresponding parts areillustrated by similar letters, Figure 1 is a front elevation, and Fig.2 is a vertical section.

The construction, operation, and arrangement of the various parts of myinvention are described as follows: The frame of the machine, consistingof the upright post designated by letter A and slotted curvilinear barsB,

is cast solid with and rests upon the bed-plate C, which is providedwith circular apertures a, by means of which 'it may be securely boltedor secured to any desired surface. The internally-toothed spurgear Erevolves upon a bolt,

I, which passes through a cylindrical aperture cut in the top of thepost A, and is secured thereto by means of the nut F. The said nut Falso secures to the said upright post the radial bars H, which are soarranged upon the said bolt as to be capable of rotation about the same.The outer ends of the said radial bars are 4provided with circularapertures, by means of which, and the screws and nuts K, they may besecured at any desired position between the bottom and top of thecurvilinear bars B. Theaxles L L of the pinions M Ml have their bearingsin journal-boxes or hubs cast upon the inner side of the said radialbars and are secured thereto. The said axles have slotted tubularprojections l), in which, the bits N are secured by-means of the pin O.The said pin also serves to hold in position the washer R, which isplaced between the samev and the annular shoulders at the connectingpoint between the tubular projections P and axles L. The pendentbrackets S, for supporting the rests' T, are provided with circularapertures, which fit over and are supported by the axles L..

It ,is obvious, from the foregoing description, that holes may be boredat a greater or less distance apart with this machine by properlyadjusting the bits; or, in other words, the said bits may be made toapproach or recede from each other, or to occupy any desired position,by causing the radial bars to describe arcs of circles, and securing thesame to the curvilinear bars by means of the screws 'and nuts K. It isalso obvious that by turning the internally-toothed spur-gear from leftto right the bits will be made to revolve in a similar direction, andtwo holes will be bored simultaneously in the work or stud while beingshoved toward the auger.

I am aware of the patent to N. R. Merchant, dated May 28,1861,and'claimnone of the devices therein shown; but

I claim and desire to secure by Letters Patent- The post A, radial barsH', pinions M M', tubular projections P, pendent brackets S supportingthe rests T, and curvilinear bars B, all combined and operating togetheras and for the purposes described.

In witness whereof I have hereunto subscribed my name this 26th day ofApril, 1872.

oLIvEE E. TEED.

Witnesses:

O. H. CURTIS, WILLIAM H. HYDE.

